I was over at Movieweb.com and I stumbled across this interesting interview with Wes Craven, Where he talks about The Hills Have Eyes 2 (Maybe a third) and Scream 4. Although it has been said for many years that a fourth film will never be made, it seems that may of changed
When asked about the possibility of a Hills Have Eyes 3, he said, "there could be, it all depends on this one. I wouldn't be at all surprised, though, because we think [HHE2] will do really well." This was followed by a question regarding the likelihood of a Scream 4. Craven replied with, "Actually, I received a call about that for the first time the other day... obviously, I've been asked about that for a long, long time... I think that it's not completely off the table at this point, as far as the studio making it. I was asked if I'd be interested, but I said it would depend on the script. [Scream 4] isn't something that's around the corner or anything, they are now thinking about it." Craven has been quoted for years as saying that Scream 4 would never happen, but it appears that that's changed, at least somewhat.
I really hope the film does get made. I miss old Mr Ghostface!
Source:
http://www.movieweb.com/news/02/18002.php